X is primarily built using the Phaser game engine for JavaScript. We used Phaser to build the game screens, handle game logic and to add music to the application. To incoporate real-time flight data for flights around Gatwick, we used FlightRadar24's RestAPI and saved queries to a database to then load into the game. On the server side, we have a Flask server that we have dockerised and run on a mini Kubernetes server to allow for ease of scalabliity, e.g. to have several games running at once on multiple devices across airport gates.